Devices for adapting bone

Abstract

A device for adapting a surface roughness of bone, the device comprising: a hollow body having a delivery tip at a distal end, the body being removeably attachable to a handle; a means for supplying fluid to and from the delivery tip to impart a surface roughness similar to that of a bone fracture surface. A device for adapting a surface roughness of bone, the device comprising: a body having an impacting tip at a distal end, the body or the impacting tip being removeably attachable to a handle; a means for generating reciprocating motion of the impacting tip, wherein the impacting tip is arranged to impart a surface roughness similar to that of a bone fracture surface.

1 . A device for imparting a surface roughness to bone, the device comprising:
 a body having an impacting tip at a distal end, the body or the impacting tip being removeably attachable to a handle;   a means for generating reciprocating motion of the impacting tip, wherein the impacting tip is arranged to impart a surface roughness similar to that of a bone fracture surface.   
     
     
         2 . (canceled) 
     
     
         3 . A device according to  claim 1  wherein the impacting tip comprises a blade having a cutting edge extending from a blade holder. 
     
     
         4 . A device according to  claim 1 , wherein the direction of the reciprocating movement is in the same direction as a long axis of the body. 
     
     
         5 . A device according to  claim 1 , wherein the means for generating the reciprocating motion is selected from the group consisting of a pneumatic, electric, magnetorestrictive, or piezo electric device. 
     
     
         6 . A device according to  claim 1 , further comprising a tool for attaching and detaching the impacting tip to the body, the tool having a first end for receiving the impacting tip and attaching it to the body, and a second end for receiving the impacting when attached to the body and detaching it from the body. 
     
     
         7 . A device according to  claim 1 , further comprising a spacer for spacing the impacting tip from the bone surface to be impacted, the spacer extending alongside the impacting tip and being attached to a part of the device which does not reciprocate. 
     
     
         8 . A device according to  claim 1 , wherein the means for generating the reciprocating motion is at least partially in the handle. 
     
     
         9 . A device according to  claim 1 , further comprising a sleeve surrounding the body along at least a portion of its length. 
     
     
         10 . (canceled) 
     
     
         11 . (canceled) 
     
     
         12 . A device according to  claim 9 , further comprising a spacer for spacing the impacting tip from the bone surface to be impacted, the spacer being annular and being positioned on the sleeve. 
     
     
         13 . (canceled) 
     
     
         14 . A device according to  claim 1 , wherein the means for generating a reciprocating motion imparts a motion of the impacting tip substantially perpendicular to a long axis of the body. 
     
     
         15 . A device according to  claim 1 , wherein the impacting tip is at least one impacting surface. 
     
     
         16 . A device according to  claim 15 , wherein the impacting tip comprises two impacting surfaces angled with respect to one another. 
     
     
         17 . A device according to  claim 9 , further comprising an adjustment sleeve positioned around the sleeve and moveable with respect to the sleeve for adjusting the amplitude of motion of the impacting tip. 
     
     
         18 . A device according to  claim 1 , wherein the impacting tip comprises a plurality of arms which are moveable with respect to the body, the arms being arranged to move outwardly when the body moves. 
     
     
         19 . A device according to  claim 18 , wherein each arm has a bone contacting surface which may be angled relative to the arm. 
     
     
         20 . (canceled) 
     
     
         21 . (canceled) 
     
     
         22 . (canceled) 
     
     
         23 . A device according to  claim 1 , wherein the impacting tip comprises blades arranged around a distal end of the body and moveable with respect to the body. 
     
     
         24 . (canceled) 
     
     
         25 . (canceled) 
     
     
         26 . A device according to  claim 23 , further comprising a cap positionable at the distal end of the body over the blades, and having openings through which the blades extend as the body actuates towards and away from the blades. 
     
     
         27 . A device according to according to  claim 1 , wherein the impacting tip comprises fibres attached to a distal end of the body. 
     
     
         28 . A device according to  claim 27 , further comprising a collar attached to the sleeve at the distal end of the body, such that movement of the body causes the fibres to move in and out of the collar. 
     
     
         29 . A device according to  claim 27 , wherein the means for generating a reciprocating motion imparts a linear motion of the body towards and away from the fibres. 
     
     
         30 . A device according to  claim 27 , wherein the body is flexible such that it can be angled relative to the handle. 
     
     
         31 . A device for imparting a surface roughness to bone, the device comprising:
 a hollow body having a delivery tip at a distal end, the body being removeably attachable to a handle;   a means for supplying fluid to and from the delivery tip to impart a surface roughness similar to that of a bone fracture surface.   
     
     
         32 . (canceled) 
     
     
         33 . A device according to  claim 31 , wherein the fluid being delivered to and from the delivery tip includes an etching fluid and water. 
     
     
         34 . (canceled) 
     
     
         35 . A device according to  claim 31 , wherein the delivery tip is angled relative to the body. 
     
     
         36 . A device according to  claim 31 , wherein the delivery tip comprises a series of openings arranged along a portion of a length of the body, the distal end of the body being sealed. 
     
     
         37 . A device according to  claim 36 , further comprising an annular seal along the body inbetween the portion of the body with the openings and a portion of the body without the openings. 
     
     
         38 . A device according to  claim 31 , further comprising a memory for storing a cycle of fluid delivery and fluid suction through the delivery tip. 
     
     
         39 . (canceled) 
     
     
         40 . (canceled) 
     
     
         41 . A method for imparting a surface roughness to bone comprising impacting a surface of bone with the impacting tip of the device of  claim 1 . 
     
     
         42 . A method for imparting a surface roughness to bone comprising etching a surface of bone using the device of  claim 31 . 
     
     
         43 . (canceled) 
     
     
         44 . (canceled) 
     
     
         45 . (canceled)